Step 1: Determine the UTF-8 encoding bit layout
The character ↹ has the Unicode code point U+21B9. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800to0xffff.
Therefore we know that the UTF-8 encoding will be done over 16 bits within the final 24 bits and that it will have the format:1110xxxx 10xxxxxx 10xxxxxx
Where thexare the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+21B9 to binary:
00100001 10111001. Those are the payload bits.Step 3: Fill in the bits to match the bit pattern:
Obtain the final bytes by arranging the paylod bits to match the bit layout:
11100010 10000110 10111001
LEFTWARDS ARROW TO BAR OVER RIGHTWARDS ARROW TO BAR·U+21B9
↹
Character Information
Code Point
U+21B9
HEX
21B9
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 86 B9 | 11100010 10000110 10111001 |
| UTF16 (big Endian) | 21 B9 | 00100001 10111001 |
| UTF16 (little Endian) | B9 21 | 10111001 00100001 |
| UTF32 (big Endian) | 00 00 21 B9 | 00000000 00000000 00100001 10111001 |
| UTF32 (little Endian) | B9 21 00 00 | 10111001 00100001 00000000 00000000 |
HTML Entity
↹
URI Encoded
%E2%86%B9
Description
The Unicode character U+21B9, known as the "LEFTWARDS ARROW TO BAR OVER RIGHTWARDS ARROW TO BAR", is a specialized symbol used in mathematical expressions and digital text. This character serves a critical role in representing specific mathematical operations, particularly those involving vector calculus and linear algebra. In these fields, U+21B9 is utilized to illustrate the concept of a leftward arrow being combined with a rightward arrow, both containing a horizontal bar, which signifies a specific transformation or operation. While this character may not be widely used in everyday text, it holds significant importance within specialized mathematical and scientific communities. Its inclusion in Unicode ensures that it is accessible for use across various digital platforms and applications, allowing experts to communicate complex concepts accurately and effectively.
How to type the ↹ symbol on Windows
Hold Alt and type 8633 on the numpad. Or use Character Map.